A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6320-00-116-3658
NSN 4140-01-109-3882
NSN 6135-00-170-8819
NSN 5990-01-065-0492
NSN 5945-01-461-3246
NSN 5905-01-433-7871
NSN 5960-00-931-4215
NSN 6650-01-382-8569
NSN 5905-01-426-8975
NSN 5975-01-166-1002
NSN 6135-00-782-6988
NSN 7035-01-648-8510